Had my OEM (I know they don't fit, but, this was in the days of dial-up internet) and, later, Rancho 2" springs rub 33s on the front of the rear wheel well. I finally moved the axle back, so I didn't loose any more Mud Terrain knob with suspension compression. That 40 had a horrible ride, but, it looked great, standing tall with high heels, and all. No driveshaft mods for the extra spring curve, and extended wheelbase, but, I also had a (longer) SM420 to replace the 3-speed that drank water, probably thru the shift tower, so I didn't worry about fully extending the (shorty) factory slip yoke.